Standard Lemma guide
Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.
Sound
Each Play button uses your device's default local English voice, or a natural local fallback. The selected voice name appears after playback. This is synthesized speech, not a source recording.
No pronunciation record was provided for this word.
noun
The loss of vision in one or more quadrants of the field of view.
Definition source: English Wiktionary via Wiktextract
Usage: countable, uncountable
Topics: medicine, ophthalmology, sciences
No example sentence was provided for this meaning.
Synonyms: none provided
Antonyms: none provided
noun
blindness in one fourth of the visual field
Definition source: Princeton WordNet 3.0
No example sentence was provided for this meaning.
Synonyms: none provided
Antonyms: none provided
Broader terms: visual impairment, visual defect, vision defect, visual disorder
History
Etymology tree English quadrant Proto-Indo-European *né Proto-Indo-European *n̥- Proto-Hellenic *ə- Ancient Greek ᾰ̓- (ă-) Ancient Greek ἀν- (an-)der. English an- English -opia English anopia English quadrantanopia From quadrant + anopia.
